The post was clearly a joking reference to the Malaysian Airlines flight that vanished over the Indian Ocean in March, but it ended up carrying more meaning. The plane crashed, killing all 298 passengers.

The plane came down near Ukraine's border with Russia. The cause of the crash is being investigated, but one U.S. official said Washington strongly suspected a surface-to-air missile fired by Ukrainian separatists downed the plane.

Family and friends have since reached out with their shock and sympathy on Pan's post. A memorial page for Pan has also been made.